106840487 has 4 divisors (see below), whose sum is σ = 115059000. Its totient is φ = 98621976.

The previous prime is 106840429. The next prime is 106840507. The reversal of 106840487 is 784048601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 106840487 - 2¹⁴ = 106824103 is a prime.

It is a super-2 number, since 2×106840487² = 22829779324794338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106840487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106840387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4109237 + ... + 4109262.

It is an arithmetic number, because the mean of its divisors is an integer number (28764750).

Almost surely, 2^106840487 is an apocalyptic number.

106840487 is a deficient number, since it is larger than the sum of its proper divisors (8218513).

106840487 is an equidigital number, since it uses as much as digits as its factorization.

106840487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8218512.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 106840487 is about 10336.3672051645. The cubic root of 106840487 is about 474.5099092868.

The spelling of 106840487 in words is "one hundred six million, eight hundred forty thousand, four hundred eighty-seven".